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    • 4. 发明授权
    • Process to make high-purity wet salt
    • 制备高纯度湿盐的工艺
    • US06866688B2
    • 2005-03-15
    • US10174846
    • 2002-06-19
    • Mateo Jozef Jacques MayerRené Lodewijk Maria Demmer
    • Mateo Jozef Jacques MayerRené Lodewijk Maria Demmer
    • C01D3/16C01D3/24C25B1/26B01D9/00
    • C25B1/26C01D3/16C01D3/24
    • The invention relates to an evaporative crystallization process to make salt compositions that includes a step wherein a mother liquor is formed that contains an effective amount of a crystal growth inhibitor that is selected from oligopeptides, polypeptides, and polymers bearing two or more carboxylic acid groups or carboxyalkyl groups and optionally further phosphate, phosphonate, phosphino, sulfate, and/or sulfonate groups, such as carboxymethyl cellulose with phosphate groups, to form salt crystals with a (111) face. The salt can be washed with a reduced amount of washing water while still containing lower amounts of K, Br, SO4, and/or Ca. A wet salt can be obtained by partially drying the salt crystals that are formed.
    • 本发明涉及一种制备盐组合物的蒸发结晶方法,其包括其中形成含有有效量的选自寡肽,多肽和带有两个或多个羧酸基团的聚合物的结晶生长抑制剂的母液的步骤,或 羧基烷基和任选的另外的磷酸酯,膦酸酯,膦基,硫酸酯和/或磺酸酯基团,例如具有磷酸酯基团的羧甲基纤维素,以形成具有(111)面的盐晶体。 盐可以用减少量的洗涤水洗涤,同时还含有较少量的K,Br,SO4和/或Ca。 可以通过部分干燥形成的盐晶体来获得湿盐。